<style>

	table {
		border-collapse: collapse;
		font: 10px Verdana;
		
	}
	
	#logo_colegio {
		vertical-align:middle;
		text-align:center;
    	width:200px;  
	}
	
	.table_margem{
		width: 100%;
		height: 500px;
	
	}
	
	.bordas{
		border-left: 1px solid black;
    	border-right: 1px solid black;
    	border-bottom: 1px solid black;		
	}
	
	.table_cabecalho{
	
		width: 100%;
		border-left: 1px solid black;
    	border-right: 1px solid black;
    	border-top: 1px solid black;
    		
	}
	
	.titulo_boletim{
		width: 100% ;
		line-height: 16px;	
		text-align:center;
	}
	
	.quebra_pagina { 
		page-break-before: always 
	}
</style>

<?php 

	echo $atas;